Choose all the answers that apply. if gene flow is reduced 1. speciation can happen 2. the genetic difference between two populations increases 3. the genetic difference between two populations decreases 4. the population may become extinct 5. the species becomes endangered

If i remember correctly, when there is little to no gene flow, speciation can happen - so, the answer is 1. speciation can happen

Ithink the answer is d.

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.